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503 Service Unavailable

Hi Experts,

We have NW CE AS 7.11 installed. Am able to see the server in started state. In Management Console also both jstart & igswd_mt is running(able to see green indicator)...

But when i access the url http://<host>:<port>/irj/portal am getting error as "Service Unavailable Application stopped".

Also i checked \usr\sap\<instance name>\J00\work\std_server0.out ,

Am getting,

 
  /usr/sap/CEP/J00/j2ee/cluster/bin/services/jms_provider/lib/private/sap.com~tc~je~jms_provi                                der~impl.jar
---------------------------------------------------------------
Error occurred while trying to load com.sap.jms.server.remote.JMSRemoteServerImpl
        at com.sap.engine.boot.loader.MultiParentClassLoader.loadClass(MultiParentClassLoader.                                java:246)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:363)
        at com.sap.jms.server.JMSServerContainer.<init>(JMSServerContainer.java:189)
        at com.sap.jms.server.JMSServerFrame.start(JMSServerFrame.java:232)
        at com.sap.engine.core.service630.container.ServiceRunner.startFrame(ServiceRunner.jav                                a:155)
        at com.sap.engine.core.service630.container.ServiceRunner.startService(ServiceRunner.j                                ava:113)
        at com.sap.engine.core.service630.container.ServiceRunner.startSingleService(ServiceRu                                nner.java:78)
        at com.sap.engine.core.service630.container.MemoryContainer.startServiceRuntime(Memory                                Container.java:762)
        at com.sap.engine.core.service630.container.MemoryContainer.startServiceRuntime(Memory                                Container.java:737)
        at com.sap.engine.core.service630.container.MemoryContainer.startServiceRuntime(Memory                                Container.java:737)
        at com.sap.engine.core.service630.container.SystemThreadProcessor.run(SystemThreadProc                                essor.java:87)
        at com.sap.engine.frame.core.thread.Task.run(Task.java:73)
        at com.sap.engine.core.thread.impl5.SingleThread.execute(SingleThread.java:162)
        at com.sap.engine.core.thread.impl5.SingleThread.run(SingleThread.java:260)
[GC [ParNew: 155516K->21726K(201984K), 0.0269980 secs] 339400K->205633K(1550592K), 0.0271490 s                                ecs]

Start of service:sap.com/tc~epbc~prtc~core initiate service service:sap.com/engine.service.fac                                ade start due to hard reference.
Start of service:sap.com/engine.service.facade initiate service service:sap.com/jms_provider s                                tart due to hard reference.
  Service [jms_provider] start ================= ERROR =================
java.lang.NoClassDefFoundError: com/sap/engine/services/rmi_p4/interfaces/LocalRemoteByRef
------------------------- Loader Info -------------------------
ClassLoader name: [service:jms_provider]
 Living status: alive
 Direct parent loaders:
   [system:Frame]
   [library:core_lib]
   [library:j2eeca]
   [service:timeout]
   [service:naming]
   [service:cross]
   [service:dbpool]
   [service:jmx]
   [service:security]  

Please help me out..

Thanks,

Arun

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